Data Transmission Method and Device, and Storage Medium

1. A method for transmitting data, comprising: sending scheduling information to a user equipment (UE) in a downlink subframe, the scheduling information being used to schedule the UE to transmit uplink (UL) data in at least one UL subframe on an unlicensed carrier, wherein the at least one UL subframe comprises a plurality of UL subframes; and receiving the UL data transmitted by the UE; wherein the scheduling information comprises: a clear channel assessment (CCA) type, a number of scheduled subframes, timing offset information of the scheduled subframes, and information for indicating a location of an ending symbol in a last one of the plurality of UL subframes; wherein the CCA type comprises CCA of a predefined detection duration and CCA of multiple detections with random backoff; wherein in response to self-scheduling is adopted and the at least one UL subframe and the downlink subframe belong to a same maximum channel occupation time (MCOT), the CCA type is the CCA of the predefined detection duration; and wherein in response to a plurality of UEs are to be scheduled, the plurality of UEs are scheduled in one of the following manners: a first manner: a same set of UEs are scheduled in all of the plurality of UL subframes; and a second manner: a different set of UEs are scheduled in each of the plurality of UL subframes.

2. The method of claim 1 , wherein when the self-scheduling is adopted and the at least one UL subframe and the downlink subframe do not belong to the same MCOT, the CCA type is the CCA of multiple detections with random backoff; and when cross-carrier scheduling is adopted, the CCA type is the CCA of multiple detections with random backoff.

3. The method of claim 1 , wherein in response to when a new UE is scheduled during the plurality of UL subframes or the different set of UEs are scheduled in each of the plurality of UL subframes, at least one of first indication information or second indication information is sent to the UE, the first indication information being used for indicating an UL subframe in which at least one symbol is reserved or kept blank of the plurality of UL subframes, the second indication information being used for indicating a number of the reserved or blank symbols, and wherein a location of the subframe where the at least one blank symbol is located is indicated in a bitmap manner.

4. The method of claim 3 , wherein the at least one blank symbol comprises at least one of: a last symbol in a previous subframe of a first one of multiple UL subframes where the newly scheduled UE is scheduled; a first symbol in the first one of multiple UL subframes where the newly scheduled UE is scheduled; a first symbol in a first one of the plurality of UL subframes; or a last symbol in a last one of the plurality of UL subframes.

5. The method of claim 1 , wherein DCIs corresponding to the plurality of UL subframes are a same DCI or different DCIs; when the DCIs corresponding to the plurality of UL subframes are the same DCI, the DCIs corresponding to the plurality of UL subframes are born through a PDCCH or an ePDCCH; and when the DCIs corresponding to the plurality of UL subframes are different DCIs, DCI corresponding to each of the plurality of UL subframes is independently coded and the DCIs corresponding to the plurality of UL subframes are born through a plurality of PDCCHs or ePDCCHs, or the DCIs corresponding to the plurality of UL subframes are jointly coded and the DCIs corresponding to the plurality of UL subframes are born through a PDCCH or an ePDCCH.

6. The method of claim 5 , wherein under at least one of the following conditions, the DCI corresponding to each of the plurality of UL subframes is independently coded and the DCIs corresponding to the plurality of UL subframes are born through the plurality of PDCCHs or ePDCCHs, or the DCIs corresponding to the plurality of UL subframes are jointly coded and the DCIs corresponding to the plurality of UL subframes are born through the PDCCH or the ePDCCH: the plurality of UL subframes are discontinuous; the plurality of UL subframes belong to different transmission opportunities (TXOPs); the plurality of UL subframes belong to different UL bursts; or the plurality of UL subframes are spaced by at least one downlink subframe.

7. The method of claim 5 , wherein under at least one of the following conditions, the DCIs corresponding to the plurality of UL subframes are born through the PDCCH or the ePDCCH: the plurality of UL subframes are continuous; or the plurality of UL subframes belong to a same TXOP.

8. The method of claim 1 , wherein each of the plurality of UL subframes transmits a data packet, and the data packet transmitted in each of the plurality of subframes and at least one of a HARQ process number or NDI of the data packet transmitted in each UL subframe are determined in one of the following manners: when the plurality of UL subframes transmit a plurality of different data packets, each of the plurality of data packets has an independent HARQ process number; when the plurality of UL subframes transmit a plurality of different data packets, the plurality of data packets share a same HARQ process number and each of the plurality of UL subframes corresponds to a 1-bit NDI, a location of a retransmitted packet corresponding to one of the plurality of data packets in the plurality of UL subframes being the same as a location of the data packet in the plurality of UL subframes during first transmission; and when a plurality of data packets having the same data are transmitted in the plurality of UL subframes, or the plurality of data packets which are of different redundancy versions but have the same data are transmitted in the plurality of UL subframes, the plurality of data packets share the same HARQ process number.

9. The method of claim 1 , wherein when both new data packets and a retransmitted packet are transmitted in the plurality of UL subframes, each of the plurality of UL subframes is scheduled to correspond to at least one of a HARQ process number or a NDI in an UL grant, an HARQ process number of the retransmitted packet being the same as an HARQ process number of the data packet corresponding to the retransmitted packet during first transmission.

10. The method of claim 1 , wherein when one of the plurality of UL subframes transmits two data packets, the two data packets share a same HARQ process number and a DCI format 4 is adopted for first transmission of one of the two data packets, if one of the two data packets is failed to be transmitted, a DCI format 0 is adopted to schedule a retransmitted packet corresponding to the data packet which is failed to be transmitted; if both of the two data packets are failed to be transmitted, the DCI format 4 is adopted to schedule two retransmitted packets corresponding to the two data packets in a same UL subframe; and when each of the two data packets has a HARQ process number, the retransmitted packet corresponding to each of the two data packets is independently scheduled.

11. A method for transmitting data, comprising: receiving scheduling information in a downlink subframe, the scheduling information being used to schedule a user equipment (UE) to transmit uplink (UL) data in at least one UL subframe on an unlicensed carrier, wherein the at least one UL subframe comprises a plurality of UL subframes; and transmitting the UL data in the at least one UL subframe on the unlicensed carrier according to the scheduling information; wherein the scheduling information comprises: a clear channel assessment (CCA) type a number of scheduled subframes, timing offset information of the scheduled subframes, and information for indicating a location of an ending symbol in a last one of the plurality of UL subframes; wherein the CCA type comprises CCA of a predefined detection duration and CCA of multiple detections with random backoff; wherein in response to self-scheduling is adopted and the at least one UL subframe and the downlink subframe belong to a same maximum channel occupation time (MCOT), the CCA type is the CCA of the predefined detection duration; and wherein in response to a plurality of UEs are to be scheduled, the plurality of UEs are scheduled in one of the following manners: a first manner: a same set of UEs are scheduled in all of the plurality of UL subframes; and a second manner: a different set of UEs are scheduled in each of the plurality of UL subframes.

12. The method of claim 11 , wherein when DCI corresponding to each of the plurality of UL subframes is independently coded and DCIs corresponding to the plurality of UL subframes are born through a plurality of physical downlink control channel (PDCCHs) or enhanced PDCCH (ePDCCHs), the PDCCH or ePDCCH corresponding to each of the plurality of UL subframes is determined in at least one of the following manners: determining the PDCCH or ePDCCH corresponding to each of the plurality of UL subframes through indication information of the at least one UL subframe, the indication information comprising offsets of the at least one UL subframe relative to the downlink subframe; or determining the PDCCH or ePDCCH corresponding to each of the plurality of UL subframes through a smallest one of control channel element (CCE) indexes of the PDCCHs or ePDCCHs corresponding to all of the plurality of UL subframes.

13. The method of claim 11 , wherein when DCI corresponding to each of the plurality of UL subframes is independently coded and DCIs corresponding to the plurality of UL subframes are born through a plurality of PDCCHs or ePDCCHs, a number of times for which the UE performs blind detection on the PDCCHs or ePDCCHs is reduced in at least one of the following manners: predefining a number of the plurality of UL subframes or a length of an UL burst; adopting a same DCI format for a plurality of UL grants; or reducing search space.

14. A device for transmitting data, comprising a processor and a memory storing computer-readable operation instructions, wherein when the computer-readable operation instructions in the memory are run, the processor is configured to: send scheduling information to a user equipment (UE) in a downlink subframe, the scheduling information being used to schedule the UE to transmit uplink (UL) data in at least one UL subframes on an unlicensed carrier, wherein the at least one UL subframe comprises a plurality of UL subframes; and receive the UL data transmitted by the UE; wherein the scheduling information comprises: a clear channel assessment (CCA) type, a number of scheduled subframes, timing offset information of the scheduled subframes, and information for indicating a location of an ending symbol in a last one of the plurality of UL subframes; wherein the CCA type comprises CCA of a predefined detection duration and CCA of multiple detections with random backoff; wherein in response to self-scheduling is adopted and the at least one UL subframe and the downlink subframe belong to a same maximum channel occupation time (MCOT), the CCA type is the CCA of the predefined detection duration; and wherein the device further comprises a scheduling module, configured to, in response to a plurality of UEs are to be scheduled, schedule the plurality of UEs in one of the following manners: a first manner: schedule a same set of UEs in all of the plurality of UL subframes; and a second manner: schedule a different set of UEs in each of the plurality of UL subframes.